Sit-stand workstation



FIG. 1 is a perspective view of a sit-stand workstation showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a perspective view thereof, shown in an alternate position.

The dashed broken lines shown in FIGS. 1-7 illustrate unclaimed portions of the sit-stand workstation. The bottom view is omitted and forms no part of the claimed design. 

CLAIM The ornamental design for a sit-stand workstation, as shown and described. 